Tokyo is the World's Most Expensive Cities Mercer Human Resource Consulting publishes their latest survey on the living costs among big cities in the world. And guess what city is topping the list? TOKYO -- by a mile. Tokyo's index is 130.7, which means that in general it is 30% more expensive than New York. The index for second most expensive city, London, is 119.0. Guess this explain why my bank account balance is not that encouraging .. :-). The list can be obtained here : http://www.mercerhr.com/costofliving  ¶ 6:47:00 PM